Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9109405 | Gas handler, riser assembly, and method | William L. Carbaugh, John R. LeBlanc | 2015-08-18 |
| 9109421 | Deformation resistant opening chamber head and method | William L. Carbaugh, Eric Mei | 2015-08-18 |
| 8844613 | Shear blade and method of attachment to shear rams | Viral Shah, William L. Carbaugh | 2014-09-30 |
| 8694298 | Drill string valve actuator with inflatable seals | Tom Griffin | 2014-04-08 |
| 8573557 | Bidirectional ram BOP and method | William L. Carbaugh, Eric Mei | 2013-11-05 |
| 8479825 | Crane device and method | John Millican | 2013-07-09 |
| 8464785 | Pipe guide arms for blind shear rams | William L. Carbaugh, Viral Shah | 2013-06-18 |
| 8413724 | Gas handler, riser assembly, and method | William L. Carbaugh, John R. LeBlanc | 2013-04-09 |
| 8166993 | Method and systems for using a shim plate for increased strength | — | 2012-05-01 |